In-Situ Pixel-wise Emissivity Measurement Using a Multispectral Infrared Camera

Area of Science:

• Thermography and thermal imaging
• Material science and surface properties

Background:

• Accurate temperature measurement in thermography relies heavily on precise emissivity values.
• Traditional emissivity measurement methods are often time-consuming, expensive, and incompatible with real-time infrared image acquisition.

Purpose of the Study:

• To develop a novel method for determining pixel-wise emissivity.
• To enable simultaneous emissivity measurement during infrared camera acquisition.
• To eliminate the need for additional materials and experiments in emissivity assessment.

Main Methods:

• Utilizing data from a multispectral infrared camera.
• Developing algorithms to process multispectral data for emissivity calculation.
• Implementing a pixel-wise emissivity determination technique.

Main Results:

• Successful pixel-wise emissivity mapping was achieved.
• The method allows for direct emissivity measurement concurrently with infrared image capture.
• Elimination of the requirement for external calibration materials or separate experimental setups.

Conclusions:

• The presented method offers a significant advancement in thermography by enabling efficient and accurate emissivity determination.
• This technique simplifies the process of obtaining precise temperature measurements in various applications.
• The approach facilitates real-time emissivity assessment, enhancing the practicality of infrared thermography.